Release v1.0.0: Complete Hash-Based Authentication System

🎯 Major Features:
- Complete hash-based authentication system (Mullvad-style)
- Database storage for user accounts and authentication logs
- Secure JWT token generation and validation
- Comprehensive login audit trail with IP and user agent tracking
- Full frontend-backend integration with Zustand state management

🔧 Technical Improvements:
- SQLite database with users and auth_logs tables
- Real JWT tokens with proper expiration (1800 seconds)
- Fixed React hydration issues in registration flow
- Improved error handling and validation
- CORS configuration for local development

🐛 Bug Fixes:
- Fixed login authentication flow that was causing 'stuck at login' issues
- Resolved API URL resolution for local development
- Fixed hash storage and validation in database
- Corrected frontend state management and token persistence

🔒 Security Enhancements:
- 16-digit decimal hash authentication with 53.1 bits of entropy
- Comprehensive login logging for security audit trails
- Secure cookie settings and session management
- Input validation with proper sanitization

🚀 Generated with Claude Code
https://claude.ai/code

Co-Authored-By: Claude <[email protected]>